baber/WOPTO huggingface dataset:
Patent GB-1251158-A (GB)
IPC: F42B1/024
Filed: 1969-03-07
Abstract: 1,251,158. Explosive devices. DYNAMIT NOBEL A.G. 7 March, 1969 [8 March, 1968], No. 12293/69. Heading F3A. An explosive device comprises a casing 2 of substantially symmetrical transverse crosssection, an explosive charge 4, an insert 3 of a material which has low sound transmissivity and a detonation propagation element 1, the contacting surfaces between the explosive charge and casing, between the insert and both the explosive charge and detonation propagation element, and between the explosive charge and the detonation propagation element, being coaxial conical surfaces. The insert is formed of plastics material, metal or gypsum and delays detonation in the axial direction so that initially detonation is transmitted radially around the insert. The element 1 is formed of explosive. Any two conical surfaces within the device which contact each other are formed using shaping means which have been made on the same machine with identical setting of the machine components. Any lack of symmetry in the individual components of the device can be compensated by a displaceable base member (7, Fig. 2, not shown) inserted between the casing and detonation propagation element.
Patent GB-1252487-A (GB)
IPC: C07C59/70
Filed: 1969-05-30
Abstract: 1,252,487. Bisphenoxyacetamide derivatives. SANDOZ Ltd. 30 May, 1969 [4 June, 1968], No. 24817/69. Addition to 1,205,173. Heading C2C. Novel bisphenoxyacetamide derivatives of the formula in which R 1  and R 2  which may be the same or different each represent H, phenyl or CF 3 , provided that at least one of R 1  and R 2  is other than hydrogen are prepared either by reacting the corresponding acid chloride, bromide or iodide or C 1-6  alkyl esters with ammonia in a solvent where is inert under the reaction conditions or, in the case of compounds in which R 1  and R 2  are both phenyl or both CF 3 , by reacting a compound of the formula Y 2 CHCONH 2  in which Y represents Cl, Br or I with either pphenylphenol or p-trifluoromethylphenol in the form of their phenolates or carrying out the reaction in the presence of an acid-binding agent. Pharmaceutical compositions, having hypocholesteremic/hypolipemic activity, contain the above novel compounds as active ingredients and pharmaceutically acceptable diluents or carriers. The compositions are in a form suitable for oral administration.
Patent GB-1257141-A (GB)
IPC: H01H3/00
Filed: 1970-03-06
Abstract: 1,257,141. Relay contact spring assemblies. SIEMENS A.G. 6 March, 1970 [10 March, 1969], No. 10786/70. Heading H1N. A contact spring assembly of an electromagnetic relay has an angle of at least 10 degrees between the free parts of the fixed and movable contact spring blades. As shown, the fixed contact blades 4c engage support plates 4b near the contact ends and co-operate with a movable blade 4d which enters a conical or convex surfaced recess 9a in an operating component 9 on an armature extension 8. The support plates may conform to the shape of the fixed contact blades.
Patent GB-1257830-A (GB)
IPC: H03K19/02
Filed: 1969-05-05
Abstract: 1,257,830. Electrothermal logic apparatus. TEXAS INSTRUMENTS Inc. 5 May, 1969 [20 May, 1968], No. 22800/69. Heading H3B. Electrothermal logic apparatus comprises a negative temperature coefficient thermistor TN1, Fig. 1, and a positive temperature coefficient thermistor TP1 which together form a two-terminal network which is so connected to electric supply lines L1, L2 and a load R 1  that the selective application of heat to the thermistors by heaters HA1, HB1 controls the load current. In Fig. 1 the thermistors are in series with one another and load R 1 , and are connected to constant voltage supply lines L1, L2, the overall resistance of the thermistors, and hence the current in the load, being governed by the electrical inputs to heaters HA1, HB1. In Fig. 3 (not shown) the thermistors are in parallel with one another. The thermistors TN3, TP3 may shunt the load, Fig. 5, which is connected across constant current supply lines L3, L4. In Fig. 6 (not shown), the shunting thermistors are in parallel with one another. The thermistors preferably have sharp transitions between low and high resistance, and the possible states of the two heaters and the loads are expressed in a digital form in Figs. 2, 4 (not shown). The currents flowing through the thermistors is low, to avoid unrequired heating.
Patent GB-1258874-A (GB)
IPC: C08G18/08
Filed: 1970-04-03
Abstract: 1,258,874. Polyurethane prepolymers. RHONE-POULENC S.A. 3 April, 1970 [4 April, 1969; 19 Nov., 1969 (2)], No. 16093/70. Heading C3R. Polymer compositions having improved storage properties comprise a polyurethane prepolymer containing terminal isocyanate groups and chains derived from a polyhydroxylic polyether having a preferred molecular weight of between 400 and 10,000, in admixture with malonitrile, preferably in the proportion of 10<SP>-3</SP> to 3000 Î 10<SP>-3</SP> molecule per molecule of polyhydroxylic ether starting material. The malonitrile may be incorporated with the prepolymer starting materials or with the preformed prepolymer. Catalysts such as alkali metal hydroxides, tertiary amines, heavy metal derivatives, acids, acid chlorides and combinations thereof may be present during the prepolymer reaction.
Patent GB-1259620-A (GB)
IPC: C08K5/00
Filed: 1969-01-03
Abstract: 1,259,620. Polymer/dye compositions. GAF. CORP. 3 Jan., 1969 [11 Jan., 1968], No. 451/69. Heading C3P. [Also in Divisions D1-D2] A composition comprises a water-soluble or water dispersible dye in admixture with an alkylated polymer of a heterocyclic monomer, wherein the said monomer contains a nitrogen atom in the heterocyclic moiety, a carbonyl or thiocarbonyl function adjacent to the said nitrogen atom, and linked to the said nitrogen atom a substituent which is the vinyl group, or contains a terminal methylene group, and the alkyl radical of the alkylated polymer contains from 2 to 24 carbon atoms. The alkylated polymer is prepared by alkylation of a polymer of the heterocyclic monomer, which is preferably an N-vinyl lactam such as N-vinyl pyrrolidone, with an alpha-olefin, or by simultaneously polymerizing and alkylating a mixture of the N-vinyl monomer and alpha-olefin. In the examples the polymers are derived from vinyl pyrrolidone and 1-butene or 1-nonene; N- vinyl caprolactam, N-vinyl-6-methyl-pyrrolidone and 1-dodecene; N-vinyl-5-methyl-pyrrolidone and 1-octadecene; N-vinyl piperidone, vinyl acetate and 1-hexadecene; N-vinyl caprolactam and 1-butene or 1-decene-, N-vinyl pyrrolidone and C 16  to C 20 -alpha olefin and the dye is selected from various orange, green, yellow, red, brown, violet, black, blue and turquoise dyes. The compositions also contain ingredients selected from water, formic acid, sodium bisulphate, sugar, urea, a sodium salt of a sulphated alkoxyphenoxy-poly(ethyleneoxy)- ethanol and a thickener.
Patent GB-1266540-A (GB)
IPC: B65D25/10
Filed: 1969-06-06
Abstract: 1,266,540. Carton inlay for cans or bottles. AEROSOL-SERVICE A.G. 6 June, 1969 [7 June, 1968], No. 28732/69. Heading B8P. An inlay sheet of a synthetic plastics or of pasteboard used for holding cans or bottles in position in a box has raised portions 2 which taper upwardly to a point the base of each portion 2 having the form of a four-pointed star and engaging the cans or bottles. To prevent the inlay sheets sticking together when stacked a ridge 3 is provided between points of adjacent star formations. The portions 2 are strengthened by ribs lying perpendicular to the plane of the sheet. The sheets may locate the top and/or bottom of each can or bottle.
Patent GB-1267197-A (GB)
IPC: H03C3/22
Filed: 1968-04-24
Abstract: 1,267,197. Frequency modulation; transistor circuits. ETHER ENG. Ltd. 23 July, 1969 [24 April, 1968], No. 19403/68. Headings H3R and H3T.  The invention relates to a signal transfer circuit which includes first and second P-N junctions which separate respectively first and second and third and fourth semi-conductor regions, the first and third being of similar polarity, and the transfer characteristics of the device being a function of the junction capacitance of the first junction. A first conductor is connected from the first to the third region and a second conductor of finite impedance from the first conductor to a terminal: means are provided to apply a direct current bias to the second and fourth regions and to the terminal so as to reverse bias the first, and forward bias the second, junction. Thereby the reverse bias voltage of the first junction is a function of the barrier potential of the second junction such as to reduce or eliminate variation in the capacitance of the first junction with ambient. temperature. The embodiment comprises a frequency-modulated oscillator utilizing transistors 54, 10, 38 and- 48, coupled in a closed loop. Transistor 10 comprises a variable phase-shift stage having equal emitter and collector resistors 2, 1 respectively and a path from collector to emitter comprising resistor 7, D.C. blocking capacitor 34 and a varactor diode 28 to which the modulating, signal is applied from terminal 30: the D.C. bias of the cathode of this diode is derived over the base to emitter path of transistor 10, so providing temperature compensation. The join of varactor diode 28 and capacitor 34 is coupled to the base of transistor 38 in the following stage, which comprises a similar phase-shifting stage but of fixed phase shift capacitor 44 being fixed. The join of resistor 11 and capacitor 44 is coupled to the base of transistor 48 which provides an output from its collector, feedback without phase-shift being taken from the emitter over line 50. It is applied to the base of phase-reversing stage 54, the output of which is coupled to the base of transistor 10: symmetrical clipping is performed by diodes 70, 77 which are biased over potentiometer networks which include further conductive diodes 50, 60 providing temperature compensation. It is stated that the modulating signal may alternatively be applied to the base of transistor 10, while capacitor 44 may be made temperature dependent to compensate for any residual temperature dependence of the output frequency.
Patent GB-1290230-A (GB)
IPC: A61M5/315
Filed: 1970-03-20
Abstract: 1290230 Pistons; cylinders NESTLE SA 20 March 1970 13472/70 Heading F2T [Also in Division F1] A syringe has a barrel 1 with an inner liner 2 of resilient plastics material and a piston 6 slidable therein, the maximum cross-sectional area of the piston being slightly greater than that of the undeformed liner. The piston comprises a bead at one end of a wire, the other end being attached to a metal plunger 3 having a thumb button 5. The glass barrel 1 may be graduated and encloses the piston 6, 3 and P.T.F.E. liner 2 and a hollow needle 4 is held in an extension of the liner surrounded by flexible plug 11. An external annular ridge 9 in the barrel serves to retain a threaded collar 8 which co-operates with a threaded cap 7 to hold the whole front section including the needle in position. A cushioning washer 10 may be positioned between the collar and the ridge 9.
Patent GB-1295148-A (GB)
IPC: B63B21/62
Filed: 1970-12-10
Abstract: 1295148 Boat couplings H HARBISCH 10 Dec 1970 58831/70 Heading B7S [Also in Division F2] First and second members, e.g. boats 1, 2 are connected together to form a push-towed unit by means of a coupling comprising a screw member 3 which engages a pair of coupling links one of which, 11, carries a bolt member 25 slidably disposed in a vertical channel member 20 mounted on the first boat 1, the other link 12 being resiliently mounted in a bearing block 16 on the second boat 2 by a drawbar 14. As shown, the coupling link 11, which is stirrup shaped, has a handle 27 by which the link may be turned through 90 degrees on threaded portion 4 of the screw 3, to allow the bolt 25 to pass through a vertical slot 24 in the channel 20 during coupling and uncoupling operations. The slide channel 20 may comprise opposed U-section channel members 21, 22 extending over the total height of the boat 1, the channel being sealed on one side, below the boat deck, by a welded closure strip 26. Threads 4, 5 on the screw coupling 3 are of opposite senses so that rotation in one direction, by a handle 6, draws the links 11, 12 together to tension the coupling against a compressed rolled-in spring 19. In modifications the spring 19 may be replaced by a spiral spring and the drawbar 14 may have an additional axial guide. Both boat units may have coupling bars, the coupling bolt of each bar being inserted into the vertical channel of the other boat unit.
Patent GB-1297329-A (GB)
IPC: H02K5/08
Filed: 1971-06-14
Abstract: 1297329 Electric motors K TSUNODA and S OHTO 14 June 1971 27762/71 Heading H2A The casing 1 of a motor, particularly for battery-operated toys, is formed of a resilient plastics material and has an end wall 3 providing a bearing 4 for one end of the armature shaft 5, and other bearing 6 being provided by a cap 2 of resilient thermoplastic material which is a snap-action fit in the other end of the casing and forms a second end wall. As shown, the cap is formed with hooped tongues 17 which engage apertures 15 in the casing. A pair of arcuate permanent magnets 11, (12) are press-fitted between longitudinally-extending ribs (13) (14) inside the casing and the cap 2 carries a pair of brush-mounting blocks 21, 27, Fig. 4, slotted at 23, 24 to receive the bases of L-shaped, leaf-spring brushes 10 and the ends of terminals 9 which extend through and project from the outer face of the cap.
Patent GB-1297781-A (GB)
IPC: D01H7/16
Filed: 1969-03-11
Abstract: 1297781 Shaft couplings BARN ROYLE ENGS (ROCHDALE) Ltd 10 June 1970 [11 March 1969] 12734/69 Heading F2U [Also in Division D1] Bobbins A are secured on spindles B by cylindrical plungers d moving outwardly at an angle of 10-15 degrees to the vertical from a plurality of bores D under centrifugal force. Movement of the plungers d may be assisted by springs. The bores can be formed in a separate section affixed to the spindle, or may be formed in separate pieces secured to the spindle by screws.- A plurality of spring loaded buttons may grip the lower end of the bobbin.
Patent GB-1303466-A (GB)
IPC: G01B9/08
Filed: 1970-11-12
Abstract: 1303466 Gauging departure from standard form TEMCO TOOLS Ltd 20 July 1971 [12 Nov 1970] 53803/70 Heading G1M [Also in Division G2] Each of the plates 2 and 3, Fig. 2 may hold either a workpiece to be inspected or a standard workpiece or representation thereof so that an observer 12 viewing through a lens 11 will see interrupted outlines of the workpiece and standard on a striped or concentrically ringed partial mirror 5. The mirror 4 may be omitted if the plate 2 is supported in the 2' position. In Fig.3 the base 31 is adjustable on screw and magnet feet 41 and the circular rotatable partial mirror 51 is at an angle of 27¢‹ to laterally and vertically adjustable plates 56, 60, the plate 56 being of magnetic material supporting a representation of a standard workpiece. Thus if an object is placed on the opposite side of the mirror 51 from the plate 60 at a distance equal to the sum of the distances from the viewer 76 to the mirror 51 and from the viewer 51 to the plate 60, a plane in the object making an angle of 27¢‹ with the mirror 51 will be seen through 76 superimposed on the image of the plate 60. According, if a reverse representation of the desired outline of the plane is secured to 60, discrepancies between the actual outline of the workpiece in this plane and the desired outline may be checked as described for Fig.2. The standard and test piece outlines are aligned by adjusting knobs 57, 58 and 59 and the magnitude of any discrepancy can then be measured by means of a bar magnet 84 and a gauge 83. A further mirror 90 pivotally mounted on a plate 70 may be provided so that a workpiece to be examined may be laid flat on the table behind the mirror 51 and beneath lamps 96, 97 and since a mirror image of this workpiece will be seen through a viewer 76 it is unnecessary to use a mirror image representation of the workpiece on the plate 60. A hand wheel 54 may be used to adjust the plates 56, 60 to a correct distance from the mirror 51.
Patent GB-1318872-A (GB)
Title: Stabilized platform
IPC: G01C21/18
Filed: 1969-03-26
Abstract: 1318872 Gyroscopic apparatus SPERRY RAND Ltd 25 June 1970 [26 March 1969] Heading G1C A stabilized platform for providing attitude and heading information in an aircraft comprises two rate gyroscopes 11, 12, each having a rotor acting as a two degree of freedom positional gyro, in a gimbal system with universal freedom, to provide a stable space reference by virtue of its angular momentum, each rotor having sensors to detect rates of deviation of its axis from an initial position, to supply signals which are used to control torque motors mounted on the gimbal system to apply torques to the gyros to counteract said deviations. The gyroscopes are mounted on a frame 15 supported relative to an axis 20 by inner and outer gimbal rings 16, 18, a servo 22 and syncho 22' acting to maintain the ring 18 and the frame 15 aligned to avoid gimbal lock. A chain 57 of resolvers and synchros having a differential drive 61 resolves various signals according to the instantaneous relationship between the gyro axes and the aircraft heading. Synchro/ torquers 33, 33' on the frame 15 sense orientation of the gyros relative to the frame 15 and supply signals via lines D, G and synchro transformers 55, 55' to a summing amplifier 56 which controls a servomotor 61 to move the chain 57 so that the zero points of transformers 55, 55' are adjusted to give zero output, the chain then being adjusted to a correct heading angle derived from the gyros. The outputs of transformers 55, 55' are also applied to summing and difference amplifiers 54, 54' together with azimuth rate signals from the gyros via lines A, C, the modulated outputs being applied through a resolver 50 to torque motors 27, 35 to maintain the gyro axes mutually perpendicular and to correct drift of the gyros axes in azimuth. Tilt of the gyros is sensed by liquid levels 23, 24 whose outputs in lines H, L are combined with an input J (as correction for the angular velocity of the aircraft over the earth's surface) and inputs from a resolver 60 giving correction for the earths rotation, resolved by a resolver 51, and applied to amplifiers 58, 58' together with vertical rate signals in lines B. P. The amplifier outputs 58, 58' are applied via compensation transformers 52, 52' and the synchro resolvers 55, 55' to the torquers 33, 33' to reduce the tilt to zero. A correction for the azimuth component of the earth's rotation is applied to differential 61 to affect only synchros 59, 59', from which synchros heading information is taken for heading indicators or navigation equipment. Synchros 26, 26' on the outer gimbal ring 18 supply pitch and roll information. The gyros are preferably of the type in which the rotor is formed by one or more tubes of fluid with their axes parallel to the spin axis, pressure transducers in the tubes measuring the rate of movement of the spin axis.
Patent GB-1320717-A (GB)
Title: Central heating systems
IPC: F24D3/02
Filed: 1970-07-22
Abstract: 1320717 Central heating systems H GREENSMITH 22 July 1970 35428/70 Heading F4U A central heating system comprising radiators connected by small bore tubing to one side of a pump, the other side of which is connected to a water heating tank housed in a cylinder common to a domestic hot water heating tank, either side by side or one above the other, each tank having at least one separately controlled immersion heater. The heaters may be thermostatically or time-controlled, and each tank is connected to a separate header tank.
Patent GB-1325440-A (GB)
Title: Separation process
IPC: B01D17/02
Filed: 1969-12-19
Abstract: 1325440 Treatment of oil-water dispersions DOW CORNING Ltd 17 Dec 1970 [19 Dec 1969] 61966/69 Heading C1C The separation of an oily material from a dispersion thereof in water comprises passing the dispersion through a finely-divided solid which has been rendered hydrophobic by contact with an organosilicon compound. The oily material may be hydrocarbon oil. The finely divided solid, which may be crushed coke or vermiculite, is preferably treated with an alkyl and/or aryl substituted hydrolysable silane or polysiloxane.
Patent GB-1325692-A (GB)
Title: Connecting rods
IPC: D05C15/20
Filed: 1970-08-22
Abstract: 1325692 Tufting machine SINGER CO (UK) Ltd 9 Aug 1971 [22 Aug 1970] 40558/70 Heading DIG [Also in Division F2] An adjustable length connecting rod used in the drive transmission to the oscillating knife or looper shaft of a tufting machine (Fig. 3, not shown) comprises an eccentric engaging big-end 11 and a bifurcated small end 12 having adjacent threaded ends 18, 19 connected by a screwed turn-buckle 13 rotation of which axially adjusts the length of the rod. The rod may be locked in any setting by clamping screws 20 arranged on slitted ends 13b of the turn-buckle 13, a setting indicataor scale 14 being provided for accurate adjustment of the rod length.
Patent GB-1332892-A (GB)
Title: Image analysis
IPC: H04N5/217
Filed: 1970-10-29
Abstract: 1332892 Television; pulse thresholding IMAGE ANALYSIS COMPUTERS Ltd 29 Oct 1970 20302/73 Divided out of 1332891 Headings H3T and H4F An image analysis system comprises a source (10) of scanned video signals, a threshold detector (12) producing a binary output, and a variable gain amplifier 130 arranged between the source and the detector, the gain of the amplifier being controlled by a voltage which varies in accordance with the low frequency average amplitude variation in the video signal caused by shading. In a first embodiment, Fig. 3, the control voltage is derived from the video signal by a low-pass filter 134 and an amplifier 136. The video signal is passed to the amplifier 130 by a delay line 132 and the threshold level of detector 12 is determined by potentiometer 128. In a second embodiment, Fig. 4 (not shown), the control voltage is derived by means of a peak level detector and an amplifier.
Patent GB-1335709-A (GB)
Title: Voltage function generator
IPC: H01C10/30
Filed: 1970-09-10
Abstract: 1335709 Function generators STANDARD TELEPHONES & CABLES Ltd 10 Sept 1970 43287/70 Heading G4G [Also in Division H1] To obtain a specified non-linear voltage variation a fixed voltage is applied by two wipers 4, 6 to a resistive track 1 of conducting plastics material of constant thickness but varying width, and a third wiper 5 takes off an intermediate voltage. The outer wipers are fixed relative to one another but the inner one is adjustable. The profile of the resistance track 1 is chosen to yield the required voltage variation on the middle wiper as the shaft rotates. The necessary profile may be obtained by calculation if the required voltage function is specified.
Patent GB-1341038-A (GB)
Title: Inductors
IPC: H01F27/34
Filed: 1971-04-19
Abstract: 1341038 Inductors THORN AUTOMATION Ltd 19 April 1971 [8 May 1970] 22445/70 Heading HIT An inductor, having a core formed from laminµ of magnetic material which are electrically insulated from each other and having an air gap formed between two poles of the core, has the thickness of magnetic material reduced in the pole region in a direction transverse to the planes of the laminµ. This may be achieved by cutting successive outer laminae shorter (Fig. 5) or by cutting each alternate laminµ short (Fig. 8), such arrangements being said to reduce losses in the inductor generated by eddy currents produced near the air gap in the polepieces. The magnetic material may also be additionally reduced in thickness in the planes of the laminµ in the pole region to produce a curved profile (Fig. 7, not shown).